Nom du corpus

Corpus Systématique Animale

Titre du document

Growth patterns of Amphiura filiformis support the hypothesis of organic enrichment in the Skagerrak-Kattegat area

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Mollusques_v2b_00148
Auteur(s)
  • Alf B. Josefson 1
  • Jørgen N. Jensen 1
Affiliation(s)
  • 1) National Environmental Research Institute, Frederiksborgvej 399, DK-4000, Roskilde, Denmark
Résumé

Population size structure, abundance and biomass of the burrowing ophiuroid Amphiura filiformis were measured in the period 1970 to 1989 at three widely spaced sites at 55 to 100 m depth in the Skagerrak-Kattegat area. This species is a dominant component of the fauna in the area, and also one of the species accounting for a great part of a recent general increase in benthic biomass. Abundance at two of the sites and biomass at all three sites increased significantly with time from the 1970s onwards. Maximum individual size and growth of the cohort of adults showed a marked increase in the period 1980 to 1983 at the three sites. In the 1980s annual absolute growth increments of the ‘recruits’ were clearly greater than in the 1970s, and size-specific growth rates were virtually unchanged. These results are consistent with the hypothesis that recent increases in benthic biomass in this area result from increased input of food to the benthos. A. filiformis has the potential for rapid growth; estimated maximum weight-specific growth rates were more than 1.5% d-1 in the disc diameter interval 3 to 9 mm, which is comparable to rates found in shallow water filtering bivalves. The maximum disc diameter growth rate was ca. 0.4 mm mo-1.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
1EBF17F6F04DEE83A099A24EB03504871422DD3F
Revue

Marine Biology

Année de publication
1992
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.508
Sous-corpus
  • Mollusques
Type de publication
Journal
ark:/67375/1BB-H4GSH7QS-2
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